would be a start for the free downloads, range of miniatures etc and then the range expands for periods other than Modern, WWII and so on backwards in history (but from other suppliers such as Irregular or Baccus)
Yep, GHQ offers great models in the 1/285 scale. Also worth a recommendation are CinC. Earlier CinC models were 1/300 scale. Not much difference at first glance but the smaller models stand out when placed directly near their 1/285 counterparts.
I love the enthusiasm of your video, and appreciate you posting that here. I have a firm belief more traditional wargamers would embrace miniatures if they ever actually got their hands on them and played. So much better than moving chits.
A couple add-ons to your thoughts: Naval miniatures are usually seen as 1/2400 scale (GHQ) or 1/1200, with some 1/600 and 1/300 exotics out there. Even 1/6000 ships for doing Jutland size battles. Axis and Allies minis are about 1/1800, so they don't mix well with others.
The 1/285 scale is the common scale seen in the US, but there are tons of 1/300 scale more commonly seen in the EU. I have both and they mix fairly well, though as with any miniatures, the differences in how they are made usually makes them stand out. I do like the C-in-C and Scotia made 1/300, and the 1/285 GHQ are awesome.
I'd also do a shout out for the 1/600 scale picoarmor. These are fairly new, and they are absolutely beautiful. They allow for better portrayal of modern tank combat, in my opinion. https://www.picoarmor.com/